CN102191551A - Neodymium-doped potassium barium gadolinium molybdate crystals and preparation method and application thereof - Google Patents
Neodymium-doped potassium barium gadolinium molybdate crystals and preparation method and application thereof Download PDFInfo
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- CN102191551A CN102191551A CN2010101215924A CN201010121592A CN102191551A CN 102191551 A CN102191551 A CN 102191551A CN 2010101215924 A CN2010101215924 A CN 2010101215924A CN 201010121592 A CN201010121592 A CN 201010121592A CN 102191551 A CN102191551 A CN 102191551A
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Abstract
The invention relates to the field of synthetic crystals, in particular to laser crystals, namely neodymium-doped potassium barium gadolinium molybdate Nd<3+>:KBaGd(MoO4)3, a preparation method and application thereof. In the method, 50 to 75 atom percent of K2Mo2O7 is used as a fluxing agent, the cooling rate is 0.5 to 2 DEG C/day, the rotating speed is 5 to 30rpm, and the Nd<3+>:KBaGd(MoO4)3 crystals with high quality and larger dimensions are grown. The crystals are novel laser crystals, and can produce laser output with the wavelengths of about 1.06 mu m and 0.9mu m. A solid laser prepared by using the crystals can be used for various fields such as spectroscopy, biomedicine, military affairs and the like.
Description
Technical field
Neodymium-doped potassium molybdate barium gadolinium laser crystal and its production and use, it relates to artificial lens and field of crystal growth in the technical field of optoelectronic functional materials, especially relates to a kind of laser crystal material as the operation material in the solid laser.
Background technology
Laser crystals is the operation material of solid statelaser, and it is meant with the crystal to be matrix, by discrete luminescence center absorptive pumping luminous energy and be translated into the luminescent material of laser output.Solid laser working substance is made up of substrate material and active ions, and its various physics and chemical property are mainly by the substrate material decision, and its spectral response curve and fluorescence lifetime etc. are then determined by the level structure of active ions.From nineteen sixty, succeeded in developing since the synthetic ruby pulsed laser, up to now, found hundreds of laser crystalss, but because of a variety of causes, the laser crystals that can really obtain practical application has only ten to plant.
At present, most widely used laser crystals is yttrium aluminum garnet (YAG) crystal of Nd ion doped, and it has various preferably physics and chemical property, and is easy to grow high optical quality, large-sized gem-quality crystal.But it is narrow that it exists spectral line of absorption, is unwell to the shortcoming of carrying out pumping with LD, and the LD pumping will be the developing direction of laser pumping source from now on.
All actively seek various physics, chemical property and mechanical property excellence both at home and abroad at present, and be easy to the high-quality laser crystal material that grows high optical quality, large size and be suitable for the LD pumping.Neodymium-doped potassium molybdate barium gadolinium laser crystal and its production and use, the purpose of its invention just is to develop a kind of new laser crystals, can directly use photoflash lamp and LD pumping, the laser crystal material with higher conversion efficiency.
Summary of the invention
Purpose of the present invention just is to develop a kind of new laser crystals Nd
3+: KBaGd (MoO
4)
3, can directly use photoflash lamp and LD pumping, laser crystal material with higher conversion efficiency.
The technical solution used in the present invention is:
1. neodymium-doped potassium molybdate barium gadolinium laser crystal, it is characterized in that: this crystalline molecular formula is KBaGd (MoO
4)
3, fusing point is 1207 ℃; In this crystal, Nd
3+Ion is doped in the crystal as the laser active ion, replaces Gd in the crystal
3+The ionic crystallographic site, its doping content is between 0.5at.-15at.%.
2. the preparation method of item 1 a described neodymium-doped potassium molybdate barium gadolinium laser crystal is characterized in that: this crystal by adopting fused salt top-seeded solution growth growth, used fusing assistant is K
2Mo
2O
7, K
2Mo
2O
7And KBaGd (MoO
4)
3Molar ratio be controlled between 50at～75at%, growth temperature is between 800～1020 ℃, rate of temperature fall is 0.5～2 ℃/day, the crystal rotating speed is 5～30rpm.
3. the purposes of item 1 a described neodymium-doped potassium molybdate barium gadolinium laser crystal, it is characterized in that: this crystal is used for solid statelaser as working-laser material, use photoflash lamp or laser diode as pumping source, excite the laser output that produces 1.06 and 0.9 μ m wavelength around.
4. as the purposes of 1 a described neodymium-doped potassium molybdate barium gadolinium laser crystal, it is characterized in that: the solid statelaser made from this crystal is used for numerous areas such as spectroscopy, biomedicine, military affairs.
Neodymium ion is as dopant ion in this crystal, replace the crystallographic site of gadolinium ion, the doping content of neodymium is between 0.5at.%～15at.%, and fluorescence lifetime (τ) is 0.1～0.2ms, its fluorescence lifetime is the function of neodymium ion concentration, can mix the neodymium ion of different concns according to different needs.Experimental result shows the laser of its exportable 1.06 and 0.9 μ m wavelength around, can be used as laser crystals.
Neodymium-doped potassium molybdate barium gadolinium laser crystal and preparation method thereof: we have found growth of Nd through experiment
3+: KBaGd (MoO
4)
3The comparatively ideal fusing assistant of crystalline: K
2Mo
2O
7, and best growth conditions, and grown high-quality crystal Nd
3+: KBaGd (MoO
4)
3(seeing embodiment 1).
Concrete chemical equation is as follows:
K
2CO
3+2BaCO
3+Gd
2O
3+6MoO
3＝2KBaGd(MoO
4)
3+3CO
2↑
K
2CO
3+2MoO
3＝K2Mo
2O
7+CO
2↑
Used material purity and producer are as follows:
| The medicine name | Purity | Producer |
| Nd 2O 3 | 99.999％ | Changchun Applied Chemistry Research Inst., Chinese Academy of Sciences |
| Gd 2O 3 | 99.999％ | Changchun Applied Chemistry Research Inst., Chinese Academy of Sciences |
| K 2CO 3 | 99.9％ | Reagent company limited of traditional Chinese medicines group |
| BaCO 3 | 99.99％ | Reagent company limited of traditional Chinese medicines group |
| MoO 3 | 99.99％ | Shanghai chemical reagents corporation of Chinese Medicine group |
Case of flux methods growth neodymium-doped potassium molybdate barium gadolinium laser crystal, its main growth conditions is as follows: used fusing assistant is K
2Mo
2O
7, raw material is pressed K
2Mo
2O
7With KBaGd (MoO
4)
3The ratio of mol ratio between 50～75at% synthetic, growth temperature is between 800～1020 ℃, rate of temperature fall is 0.5～2 ℃/day, the crystal rotating speed is 5～30rpm.Nd
3+Ion is doped in the crystal as the laser active ion, replaces Gd in the crystal
3+The ionic crystallographic site.
The Nd that grows
3+: KBaGd (MoO
4)
3Crystal carries out the analytical test of absorption spectrum, fluorescence spectrum and fluorescence lifetime etc., and the result shows: mix 2.4at.%Nd
3+Ionic Nd
3+: KBaGd (MoO
4)
3Crystalline master absorption peak is at 804nm, and its peak width at half height is 9nm, and the absorption jump cross section is 11.1 * 10
-20Cm
2, be very suitable for adopting the AsGaAl semiconductor laser to carry out pumping in the bigger peak width at half height in 804nm place, help the absorption of laser crystals to pump light, improve pumping efficiency.It has the emission band of three non-constant widths at the 850nm-1400nm wave band, and wherein peak center is at the 1069nm place, and the peak width at half height of emission peak (FWHM) is 30nm, and emission cross section is 5.17 * 10
-20Cm
2, the peak width at half height at 914nm place is 76nm, emission cross section is 5.1 * 10
-21Cm
2, fluorescence lifetime is 0.141ms, because the long crystal of fluorescence lifetime can accumulate more particle at last energy level, has increased energy storage, helps the raising of device output rating and output energy.Therefore, Nd
3+: KBaGd (MoO
4)
3Crystal can obtain the output of more powerful laser, is a kind of high conversion efficiency, low cost, high optical quality and actual application prospect is arranged and the laser crystals of use value.
Nd
3+: KBaGd (MoO
4)
3Crystal can grow superior in quality crystal easily with molten-salt growth method, fast growth, the crystal quality is hard, has good heat-conducting, good optical characteristics is arranged, be easy to obtain laser output with flash lamp pumping and LD pumping, laser output wavelength is about 1.06 and 0.9 μ m, and this crystal can be used as a kind of laser crystals preferably.
Embodiment
Realize that experiment optimal way of the present invention is as follows:
Embodiment 1: the flux growth doping content is 3.0at.%Nd
3+Nd
3+: KBaGd (MoO
4)
3Laser crystals.
Growth raw material is: KBaGd (MoO
4)
3: K
2Mo
2O
7=1: 1 (mol ratio) mixed the Nd of 3.0at%
3+Ion.Adopt the fused salt top-seeded solution growth, in φ 60 * 50mm platinum alloy crucible, growth temperature is between 1020 → 980 ℃, and with 1 ℃/day rate of temperature fall, 10 rev/mins crystal rotating speed has grown and has been of a size of 25 * 24 * 6mm
3High-quality Nd
3+: KBaGd (MoO
4)
3Crystal.Nd in ICP (plasma emission spectrum) analysis revealed crystal
3+Ion content 2.4at%.
Claims (4)
1. neodymium-doped potassium molybdate barium gadolinium laser crystal, it is characterized in that: this crystalline molecular formula is KBaGd (MoO
4)
3, fusing point is 1207 ℃; In this crystal, Nd
3+Ion is doped in the crystal as the laser active ion, replaces Gd in the crystal
3+The ionic crystallographic site, its doping content is between 0.5at.-15at.%.
2. the preparation method of the described neodymium-doped potassium molybdate of claim 1 a barium gadolinium laser crystal is characterized in that: this crystal by adopting fused salt top-seeded solution growth growth, used fusing assistant is K
2Mo
2O
7, K
2Mo
2O
7And KBaGd (MoO
4)
3Molar ratio be controlled between 50at～75at%, growth temperature is between 800～1020 ℃, rate of temperature fall is 0.5～2 ℃/day, the crystal rotating speed is 5～30rpm.
3. the purposes of the described neodymium-doped potassium molybdate of claim 1 a barium gadolinium laser crystal, it is characterized in that: this crystal is used for solid statelaser as working-laser material, use photoflash lamp or laser diode as pumping source, excite the laser output that produces 1.06 and 0.9 μ m wavelength around.
4. the purposes of neodymium-doped potassium molybdate barium gadolinium laser crystal as claimed in claim 1 is characterized in that: the solid statelaser made from this crystal is used for numerous areas such as spectroscopy, biomedicine, military affairs.
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|---|---|---|---|
| CN201010121592.4A CN102191551B (en) | 2010-03-10 | 2010-03-10 | Neodymium-doped potassium barium gadolinium molybdate crystals and its production and use |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102747423A (en) * | 2012-07-19 | 2012-10-24 | 中国科学院福建物质结构研究所 | Cr<3+>:KMgSc(WO4)3 doped tunable laser crystal and method for preparing same |
| CN102877132A (en) * | 2012-10-22 | 2013-01-16 | 中国科学院福建物质结构研究所 | Ytterbium-doped molybdic acid gadolinium barium potassium laser crystal and preparation method thereof |
| RU2540555C2 (en) * | 2013-04-16 | 2015-02-10 | Федеральное государственное бюджетное учреждение науки Институт неорганической химии им. А.В. Николаева Сибирского отделения Российской академии наук | Methods of growing monocrystals of potassium-barium molybdate |
| CN106058631A (en) * | 2016-07-20 | 2016-10-26 | 上海应用技术学院 | Dysprosium-doped strontium calcium molybdate green laser crystal and preparation method thereof |
| CN113249790A (en) * | 2021-05-26 | 2021-08-13 | 曲阜师范大学 | Neodymium activated ion doped Na5Lu (MoO4)4 crystal and preparation method and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101037802A (en) * | 2006-03-17 | 2007-09-19 | 中国科学院福建物质结构研究所 | Yttrium neodymium gadolinium barium molybdate doped laser crystal and preparation method and usage thereof |
| CN101089242A (en) * | 2006-06-13 | 2007-12-19 | 中国科学院福建物质结构研究所 | Doped neodymium lithium lanthanum barium tungstate laser crystal and its preparation method and usage |
| CN101676446A (en) * | 2008-09-16 | 2010-03-24 | 中国科学院福建物质结构研究所 | Neodymium-doped lanthanum barium lithium molybdate laser crystal and preparation method and application thereof |
-
2010
- 2010-03-10 CN CN201010121592.4A patent/CN102191551B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101037802A (en) * | 2006-03-17 | 2007-09-19 | 中国科学院福建物质结构研究所 | Yttrium neodymium gadolinium barium molybdate doped laser crystal and preparation method and usage thereof |
| CN101089242A (en) * | 2006-06-13 | 2007-12-19 | 中国科学院福建物质结构研究所 | Doped neodymium lithium lanthanum barium tungstate laser crystal and its preparation method and usage |
| CN101676446A (en) * | 2008-09-16 | 2010-03-24 | 中国科学院福建物质结构研究所 | Neodymium-doped lanthanum barium lithium molybdate laser crystal and preparation method and application thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102747423A (en) * | 2012-07-19 | 2012-10-24 | 中国科学院福建物质结构研究所 | Cr<3+>:KMgSc(WO4)3 doped tunable laser crystal and method for preparing same |
| CN102877132A (en) * | 2012-10-22 | 2013-01-16 | 中国科学院福建物质结构研究所 | Ytterbium-doped molybdic acid gadolinium barium potassium laser crystal and preparation method thereof |
| RU2540555C2 (en) * | 2013-04-16 | 2015-02-10 | Федеральное государственное бюджетное учреждение науки Институт неорганической химии им. А.В. Николаева Сибирского отделения Российской академии наук | Methods of growing monocrystals of potassium-barium molybdate |
| CN106058631A (en) * | 2016-07-20 | 2016-10-26 | 上海应用技术学院 | Dysprosium-doped strontium calcium molybdate green laser crystal and preparation method thereof |
| CN113249790A (en) * | 2021-05-26 | 2021-08-13 | 曲阜师范大学 | Neodymium activated ion doped Na5Lu (MoO4)4 crystal and preparation method and application thereof |
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| CN102191551B (en) | 2015-09-16 |
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